Mahesh and Umesh can complete a work in 10 days and 15 days respectively. Umesh starts the work and after 5 days Mahesh also joins him. In all the work would be completed in ?

Mahesh and Umesh can complete a work in 10 days and 15 days respective

1.	Mahesh and Umesh can complete a work in 10 days and 15 days respectively. Umesh starts the work and after 5 days Mahesh also joins him. In all the work would be completed in ?
A.	7 days
B.	9 days
C.	11 days
D.	None of these
Answer» C. 11 days

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Mahesh and Umesh can complete a work in 10 days and 15 days respectively. Umesh starts the work and after 5 days Mahesh also joins him. In all the work would be completed in ?

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